改进亮度、色度信号分离电路提高彩电清晰度

Improve The Definition Of Color TVs By Bettering The Circuits In Charge Of Brightness And Color Signals Separation

本文提出用梳状滤波器替代PLA -D制式彩色电视机的亮度、色度分离电路中的陷波器 ,以克服亮度信号受损 ,影响图像清晰度的缺点。

This paper demonstrates how to overcome the interruption of brightness signals which surely results in the poor effect in the definition by using comb filters in place of trappers in the circuits separating brightness and color signals in PLA-D system TV receivers.